H3PMo12O40@ZIF-67-derived CoMoC/ZnIn2S4 Schottky heterojunction for enhanced photocatalytic hydrogen evolution

In this work, a novel CMC/ZIS Schottky heterojunction photocatalytic material was synthesized by solvothermal complexation of the H3PMo12O40@ZIF-67 3 PMo 12 O 40 @ZIF-67 derived precursors with ZnIn2S4. 2 S 4 . According to the experimental findings, the 5% CMC/ZIS composite photocatalytic material outperformed the pure ZIS catalyst in terms of photoelectric performance and visible light responsiveness. The 5% CMC/ZIS Schottky heterojunction catalyst presents a hydrogen production rate of 2232 mu mol g- 1 h- 1 , which is about five times that of the pure ZIS. The high photocatalytic activity of the 5% CMC/ZIS composite can be attributed to the narrowed band gap and the formation of a Schottky heterojunction. The composite exhibits enhanced visible light absorption capability and faster-photogenerated electron separation efficiency. The study highlights the advantages of the integration of MOF derivatives with ZnIn2S4 2 S 4 for the preparation of composite photocatalysts with improved hydrogen production activities.